Henna Hair Colors
Henna hair dye colors are limited to Earth colors, primarily made up of the plant henna, "Lawsonia Enermas", and indigo, "Indigofera tinctoria". Henna is one color: Red orange, like a natural red head, AKA "ginger". Indigo is a very dark deep rich blue, almost black. Clay is added for deeper reds and burgundy. Other plants like amla,cassia obovata and shikakai can also help condition the hair and alter the color for soft blacks and light browns.
Henna hair dye is permanent and last longer than chemical hair dyes depending on where you purchase it.